KR960032871A - Speed control circuit of ultrasonic motor - Google Patents

Speed control circuit of ultrasonic motor Download PDF

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Publication number
KR960032871A
KR960032871A KR1019950002080A KR19950002080A KR960032871A KR 960032871 A KR960032871 A KR 960032871A KR 1019950002080 A KR1019950002080 A KR 1019950002080A KR 19950002080 A KR19950002080 A KR 19950002080A KR 960032871 A KR960032871 A KR 960032871A
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KR
South Korea
Prior art keywords
frequency
voltage
circuit
motor
control circuit
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Application number
KR1019950002080A
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Korean (ko)
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KR100248018B1 (en
Inventor
민경화
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김광호
삼성전자 주식회사
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Priority to KR1019950002080A priority Critical patent/KR100248018B1/en
Publication of KR960032871A publication Critical patent/KR960032871A/en
Application granted granted Critical
Publication of KR100248018B1 publication Critical patent/KR100248018B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

본 발명은 초음파 모터의 속도 제어 회로에 관한 것이다.The present invention relates to a speed control circuit of an ultrasonic motor.

본 발명은 제어전압에 의해 주파수를 발진시키며, 입력전압을 가변시켜 주파수를 변화시키기 위한 전압 제어 발진기와, 그 전압 제어 발진기에서 발진된 주파수를 분주, 변환하기 위한 주파수 체배기와, 이 주파수 체배기에 의해 체배된 주파수를 실제 사용주파수가 되도록 다시 체배시키는 위상이동 회로부와, 모터에 인가되는 전류량을 조절하기 위한 턴 온 타임 조절 회로부와, 모터의 회전방향을 바꾸어 주기 위한 회전방향 절환회로부와, 압전체가 진동되는 해당주파수의 상태에 맞는 전압으로 변환시키기 위한 저역필터부와, 그 저역필터부를 통과한 주파수를 유지하여 상기 전압제어 발진기에 입력시키기 위한 주파수 유지회로부를 구비하고 있다.The present invention provides a voltage controlled oscillator for oscillating a frequency by a control voltage, changing an input voltage to change a frequency, a frequency multiplier for dividing and converting a frequency oscillated in the voltage controlled oscillator, and a frequency multiplier. A phase shift circuit unit for multiplying the multiplied frequency to become an actual use frequency, a turn-on time control circuit unit for adjusting the amount of current applied to the motor, a rotation direction switching circuit unit for changing the rotation direction of the motor, and a piezoelectric vibration And a low pass filter unit for converting the voltage into a voltage corresponding to the state of the corresponding frequency, and a frequency holding circuit unit for maintaining the frequency passing through the low pass filter unit and inputting the same to the voltage controlled oscillator.

이와 같은 구성의 본 발명은 위상가변방식을 취하고 있어 종래의 주파수에 대한 속도의 민감도를 낮추어야 하는 문제 및 공진주파수 근처에서의 이상동작을 나타낼 수 있다는 문제를 해결할 수 있다. 또한, 속도를 조금씩 변화시킬 수 있어 정밀제어가 가능하고, 회로의 구현이 용이한 장점이 있다.The present invention having such a configuration can solve the problem of having to lower the sensitivity of the speed with respect to the conventional frequency and the abnormal operation near the resonance frequency. In addition, since the speed can be changed little by little, precision control is possible, and the circuit can be easily implemented.

Description

초음파 모터의 속도 제어 회로Speed control circuit of ultrasonic motor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 초음파 모터의 속도 제어 회로의 개략적인 회로구성도,1 is a schematic circuit diagram of a speed control circuit of an ultrasonic motor according to the present invention;

제2도는 제1도의 속도 제어회로에서 위상이동회로부의 개략적인 회로구성도.2 is a schematic circuit diagram of a phase shift circuit in the speed control circuit of FIG.

Claims (3)

소정의 제어전압에 의해 주파수를 발진시키며, 입력전압을 가변시켜 주파수를 변화시키기 위한 전압 제어 발진기와, 상기 전압 제어 발진기에서 발진된 주파수를 분주하여 소정 주파수로 변환하기 위한 주파수 체배기와, 상기 주파수 체배기에 의해 체배된 주파수를 실제 사용주파수가 되도록 다시 체배시키는 위상이동 회로부와, 모터에 인가되는 전류량을 조절하기 위한 턴 온 타임 (turn on time) 조절 회로부와, 압전체에 인가되는 신호를 바꾸어 줌으로써 모터의 회전방향을 바꾸어 주기 위한 회전방향 절환회로부와, 압전체의 주파수를 저역통과시켜 압전체가 진동되는 해당주파수의 상태에 맞는 전압으로 변환시키기 위한 저역필터부와, 상기 저역필터부를 통과한 주파수를 유지하여 상기 전압제어 발진기에 입력시키기 위한 주파수 유지회로부를 구비하여 된 것을 특징으로 하는 초음파 모터의 속도 제어 회로.A voltage controlled oscillator for oscillating the frequency by a predetermined control voltage and varying the frequency by varying the input voltage, a frequency multiplier for dividing the frequency oscillated by the voltage controlled oscillator and converting the frequency into a predetermined frequency; Phase shifting circuit section for multiplying the frequency multiplied by the circuit to become the actual use frequency, turn on time adjusting circuit section for adjusting the amount of current applied to the motor, and changing the signal applied to the piezoelectric body. A rotation direction switching circuit part for changing the rotation direction, a low pass filter part for converting the piezoelectric frequency into a voltage suitable for the state of the corresponding frequency at which the piezoelectric element is vibrated, and a frequency passing through the low pass filter part, while maintaining Frequency holding circuit part for inputting to voltage controlled oscillator Characterized in that the comparison with the ultrasonic motor speed control circuit in that. 제1항에 있어서, 상기 위상이동호로부는 모터 인가 주파수(f)의 2배 주파수(2f)를 시간 지연시켜 모터인가 주파수를 만드는 회로에 입력시켜주는 타임딜레이부와, 상기 2배 주파수를 변조하여 위상을 이동시켜주는 램프 웨이브(remp wave) 발생회로부를 구비하여 된 것을 특징으로 하는 초음파 모터의 속도 제어 회로.2. The apparatus of claim 1, wherein the phase shift path unit modulates the double frequency by a time delay unit for delaying the frequency 2f of the motor frequency f and inputting it to a circuit for generating the motor frequency. A speed control circuit for an ultrasonic motor, comprising: a ramp wave generation circuit portion for shifting a phase. 제1항에 있어서, 상기 턴 온 타임 조절회로부는 가변저항(VR)과 콘덴서(C)와 펄스폭을 가변시켜주기 위한 멀티바이브레이터의 직렬 연결 회로로 구성된 것을 특징으로 하는 초음파 모터의 속도 제어 회로.The speed control circuit of claim 1, wherein the turn-on time control circuit part comprises a series connection circuit of a multivibrator for varying a variable resistor (VR), a condenser (C), and a pulse width. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950002080A 1995-02-06 1995-02-06 Speed control circuit of an ultrasonic motor KR100248018B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950002080A KR100248018B1 (en) 1995-02-06 1995-02-06 Speed control circuit of an ultrasonic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950002080A KR100248018B1 (en) 1995-02-06 1995-02-06 Speed control circuit of an ultrasonic motor

Publications (2)

Publication Number Publication Date
KR960032871A true KR960032871A (en) 1996-09-17
KR100248018B1 KR100248018B1 (en) 2000-03-15

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KR1019950002080A KR100248018B1 (en) 1995-02-06 1995-02-06 Speed control circuit of an ultrasonic motor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100649635B1 (en) * 2005-02-25 2006-11-27 삼성전기주식회사 Driving device of piezoelectric ultrasonic motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100649635B1 (en) * 2005-02-25 2006-11-27 삼성전기주식회사 Driving device of piezoelectric ultrasonic motor

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KR100248018B1 (en) 2000-03-15

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